Ubuntu is a Linux-based and community-developed operating system that is used for laptops, desktops and servers. It contains applications such as a web browser, presentation, document and spreadsheet software, instant messaging and more. - [Read more]

Debian GNU/Linux is a free distribution of the GNU/Linux operating system. It is maintained and updated by many users who volunteer their time and effort. Debian uses the Linux kernel as the core of its operating system, but majority of the basic OS tools come from the GNU project. It comes with a lot of packages, precompiled software bundled up in a format for easy installation on machines. - [Read more]

The Linux Kernel Archives is the primary site for the Linux kernel source, but it contains more information than just Linux kernels. It's provided as a public service by the Californian nonprofit corporation, The Linux Kernel Organization Inc.. The organization has servers which are located in San Francisco, CA, USA; Palo Alto, CA, USA; Corvallis, OR, USA; Amsterdam, Netherlands; and Umea, Sweden. - [Read more]

Microsoft Windows is a series of software operating systems and graphical user interfaces produced by Microsoft Corporation. Versions of the OS are used on personal computers and servers. - [Read more]

The GNU Project is a free software, mass collaboration project founded by Richard Stallman. It develops the free Unix style operating system, GNU, that helps computer users to have the freedom to share and improve the software they use. The work of the GNU Project includes software development, awareness building and political campaigning. - [Read more]

Linux is a free Unix-type operating system that was originally developed by Linus Torvalds with the help of developers around the world. Created under the GNU General Public License , the Linux source code is freely available to every individual. The OS is causing a revolution in the world of computers. It's mostly used on servers, though some are using it on home PCs. - [Read more]